Exceptions to the Points-Based Rent Increase System in Delft

Not every rent increase in Delft falls under the national points-based rent assessment system. Exceptions apply in cases of large-scale maintenance in listed buildings on Oude Delft or Koornmarkt, improvements such as insulation in TU Delft student flats or a new bathroom, provided these are invoiced and approved by the municipality. Landlords may then charge an 'improvement increase' of up to 80% of the costs, in addition to the regular indexation. Deviations may also occur in cases of mutation (new tenant, often Delft starters) or interim agreements in the rental contract. Room rentals in districts such as Poptahof and temporary contracts for expats at ASML are excluded. For luxury apartments in the city center with a gross rent above €1,000, there is sometimes no limit. The Good Landlordship Act restricts excesses, particularly relevant due to Delft's housing shortage. Tenants must provide written consent for additional increases. In case of a dispute, the subdistrict court in The Hague will rule. For example, solar panels on roofs in the Buitenhof district justify an additional 5%. In 2024, the government caps increases at 5.3% for private sector homes under €1,100, while Delft housing associations such as Vestia apply stricter local rules. Always check your rental agreement for clauses and consult the Legal Counter in Delft for advice. Legal assistance helps avoid unpleasant surprises at the Rent Tribunal.